A control circuit for a dual-power supply electric mechanism

Abstract

The present invention relates to a control circuit of a dual-powered electric mechanism, the circuit comprising: a dual-way switch control circuit for providing a first drive circuit and a second drive circuit to the electric mechanism, the first drive circuit for driving the electric mechanism to operate in the forward direction, and the second drive circuit for driving the electric mechanism to operate in the reverse direction; an anti-recoil circuit for filtering out the reverse voltage generated after the switching in a unidirectional conduction manner when the electric mechanism has an operation of switching the operating direction, so as to prevent the reverse voltage from reversely charging the system power supply of the control circuit; the control signal judgment circuit for generating a control circuit drive signal after receiving a switch control signal from a user, the control circuit drive signal for controlling one of the first drive circuit or the second drive circuit to be in a working state. The processing scheme disclosed in the present invention can improve the safety of the dual-powered electric mechanism.

Description

Technical Field

[0001] The present disclosure relates to the technical field of circuit control, and in particular to a control circuit of a dual-power supply electric mechanism. Background Art

[0002] The motor needs to be rotated forward and reversely in daily use. It can be said that the forward and reverse rotation of the motor is widely used, such as cranes, electric planers for woodworking, bench drills, wire cutting machines, spin dryers, lathes, etc.

[0003] Initially, people needed some kind of device to reverse, which required replacing the motor wires, but this method was cumbersome in actual use. Later, people installed two switches to change the forward and reverse rotation of the motor by switching the switches. After a while, a forward and reverse switch appeared. This wiring was simpler and the volume was also reduced. Due to the limitation of the contacts, it can only be widely used on small motors. With the birth of the contactor, the forward and reverse circuit of the motor has also been further developed. The forward and reverse rotation of the motor can be controlled more flexibly and conveniently, and a protection circuit is added to the circuit.

[0004] For dual-powered electric mechanisms, how to ensure the safety of the dual-powered circuits is a technical problem that needs to be solved. Summary of the invention

[0005] In view of this, an embodiment of the present disclosure provides a control circuit of a dual-powered electric mechanism to at least partially solve the problems existing in the prior art.

[0006] The embodiment of the present disclosure provides a control circuit of a dual-power supply electric mechanism, including:

[0007] A dual-way switch control circuit, the dual-way switch control circuit is used to provide a first drive circuit and a second drive circuit to the electric mechanism, the first drive circuit is used to drive the electric mechanism to operate in a forward direction, and the second drive circuit is used to drive the electric mechanism to operate in a reverse direction;

[0008] an anti-reverse charging circuit, wherein when the electric mechanism switches its operating direction, the anti-recoil circuit filters out the reverse voltage generated after the switching in a unidirectional manner to prevent the reverse voltage from reversely charging the system power supply of the control circuit;

[0009] A control signal decision circuit, wherein the control signal decision circuit is used to generate a control circuit drive signal after receiving a switch control signal from a user, wherein the control circuit drive signal is used to control one of the first drive circuit or the second drive circuit to be in a working state.

[0010] According to a specific implementation of the embodiment of the present disclosure, the control circuit further includes:

[0011] A capacitor suppression circuit, wherein the capacitor suppression circuit includes one or more energy storage capacitors, wherein the energy storage capacitors are used to prevent energy shock to the power supply system when power is applied, and when an overvoltage condition occurs, the energy storage capacitors store energy, and when an undervoltage condition occurs, the energy storage capacitors quickly release the stored electrical energy.

[0012] According to a specific implementation of the embodiment of the present disclosure, the control circuit further includes:

[0013] A Hall sensor is used to monitor the rotation speed of the electric mechanism and generate a rotation speed signal.

[0014] According to a specific implementation of the embodiment of the present disclosure, the Hall sensor is further used for:

[0015] The direction of rotation of the electric mechanism is monitored, and a forward signal is generated when the electric mechanism is running in the forward direction, and a reverse signal is generated when the electric mechanism is running in the reverse direction.

[0016] According to a specific implementation of the embodiment of the present disclosure, the control circuit further includes:

[0017] A delay circuit, after receiving the user's switching signal for the first drive circuit and the second drive circuit, the delay circuit generates a delay time corresponding to the speed signal by acquiring the speed signal generated by the Hall sensor; after receiving the user's switch control signal, the control signal decision circuit generates a control circuit drive signal after the delay time.

[0018] According to a specific implementation of the embodiment of the present disclosure, the control circuit further includes:

[0019] The indicator light module is used to indicate the current rotation speed and direction of the electric mechanism.

[0020] According to a specific implementation of the embodiment of the present disclosure, the indicator light module includes:

[0021] The first indicator light generates a first indication color when the electric mechanism is running in a forward direction, and generates a second indication color when the electric mechanism is running in a reverse direction, and the first indication color is different from the second indication color.

[0022] According to a specific implementation of the embodiment of the present disclosure, the indicator light module further includes:

[0023] The second indicator light generates flashing signals of different frequencies according to the rotation speed of the electric mechanism.

[0024] According to a specific implementation of the embodiment of the present disclosure, the dual-way switch control circuit further includes:

[0025] A current monitoring module is used to cut off the power supply of the dual-way switch control circuit after the current value in the dual-way switch control circuit exceeds a preset current value.

[0026] According to a specific implementation of the embodiment of the present disclosure, the anti-reverse charging circuit further includes:

[0027] An isolated PMOS switch tube is used to filter out the reverse voltage generated after switching in a unidirectional conduction manner.

[0028] A control circuit implementation scheme of a dual-powered electric mechanism in an embodiment of the present disclosure includes: a dual-way switch control circuit, the dual-way switch control circuit is used to provide a first drive circuit and a second drive circuit to the electric mechanism, the first drive circuit is used to drive the electric mechanism to operate in the forward direction, and the second drive circuit is used to drive the electric mechanism to operate in the reverse direction; an anti-reverse charging circuit, when the electric mechanism has an operation of switching the operating direction, the anti-recoil circuit filters out the reverse voltage generated after the switching in a unidirectional conduction manner to prevent the reverse voltage from reversely charging the system power supply of the control circuit; a control signal judgment circuit, the control signal judgment circuit is used to generate a control circuit drive signal after receiving the user's switch control signal, and the control circuit drive signal is used to control one of the first drive circuit or the second drive circuit to be in a working state. Through the processing scheme disclosed in the present disclosure, the safety of the control circuit of the dual-powered electric mechanism is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 A schematic diagram of a control circuit of a dual-powered electric mechanism provided in an embodiment of the present disclosure;

[0031] Figure 2 A schematic diagram of the structure of a control circuit of another dual-power supply electric mechanism provided in an embodiment of the present disclosure;

[0032] Figure 3 A schematic diagram of the structure of a control circuit of another dual-power supply electric mechanism provided in an embodiment of the present disclosure;

[0033] Figure 4A schematic diagram of the structure of a control circuit of another dual-powered electric mechanism provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0034] The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0035] The following describes the embodiments of the present disclosure through specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of the embodiments. The present disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present disclosure.

[0036] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein may be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present disclosure, it should be understood by those skilled in the art that an aspect described herein may be implemented independently of any other aspect, and two or more of these aspects may be combined in various ways. For example, any number of aspects described herein may be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein may be used to implement this device and / or practice this method.

[0037] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present disclosure. The drawings only show components related to the present disclosure rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0038] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects described may be practiced without these specific details.

[0039] Example 1

[0040] See also Figure 1A control circuit of a dual-powered electric mechanism in an embodiment of the present disclosure includes: a dual-way switch control circuit, an anti-reverse charging circuit and a control signal judgment circuit.

[0041] The dual-way switch control circuit is used to provide power supply to the electric mechanism, which is used to drive the motor structure to operate. The electric mechanism can be various types of structures containing motors. The electric mechanism can be an electric motor or other rotatable equipment that outputs power outward by rotating. As a way, the motor of the electric mechanism can rotate forward or reverse. To this end, a first drive circuit and a second drive circuit for providing power to the electric mechanism are provided in the dual-way switch circuit. The first drive circuit is used to drive the electric mechanism to operate forward, and the second drive circuit is used to drive the electric mechanism to operate reversely. By independently setting the first drive circuit and the second drive circuit, the electric mechanism can be quickly rotated forward or reversed by turning on any one of the first drive circuit and the second drive circuit.

[0042] During the forward and reverse switching process of the electric mechanism, due to the existence of inertia, the electric mechanism will continue to maintain the original rotation direction during the forward and reverse switching process, resulting in the generation of reverse voltage. For this reason, a special anti-reverse charging circuit is set. When the electric mechanism has an operation of switching the operating direction, the anti-recoil circuit filters out the reverse voltage generated after the switching through a unidirectional conduction method to prevent the reverse voltage from reversely charging the system power supply of the control circuit. In order to perform a single-way conduction setting, different unidirectional conduction circuits are specially set for different rotation directions of the electric mechanism, so that after the forward and reverse switching, the reverse voltage can still be filtered through different unidirectional conduction circuits.

[0043] The control signal judgment circuit is used to control the forward and reverse directions of the electric mechanism. After receiving the user's switch control signal, the control signal judgment circuit is used to generate a control circuit drive signal, and the control circuit drive signal is used to control one of the first drive circuit or the second drive circuit to be in a working state.

[0044] Through the contents in the above embodiments, the safety of the dual-power supply electric mechanism can be improved by setting the coordination between the switch control circuit, the anti-reverse charging circuit and the control signal judgment circuit.

[0045] Example 2

[0046] See also Figure 2 A control circuit of a dual-powered electric mechanism in an embodiment of the present disclosure includes: a dual-way switch control circuit, an anti-reverse charging circuit, a control signal judgment circuit and a capacitor suppression circuit.

[0047] The dual-way switch control circuit is used to provide power supply to the electric mechanism, which is used to drive the motor structure to operate. The electric mechanism can be various types of structures containing motors, and the electric mechanism can be an electric motor that outputs power to the outside by rotating. As a way, the motor of the electric mechanism can rotate forward or reverse. To this end, a first drive circuit and a second drive circuit for providing power to the electric mechanism are provided in the dual-way switch circuit, the first drive circuit is used to drive the electric mechanism to operate forward, and the second drive circuit is used to drive the electric mechanism to operate reversely. By independently setting the first drive circuit and the second drive circuit, the electric mechanism can be quickly rotated forward or reversed by turning on any one of the first drive circuit and the second drive circuit.

[0048] During the forward and reverse switching process of the electric mechanism, due to the existence of inertia, the electric mechanism will continue to maintain the original rotation direction during the forward and reverse switching process, resulting in the generation of reverse voltage. For this reason, a special anti-reverse charging circuit is set. When the electric mechanism has an operation of switching the operating direction, the anti-recoil circuit filters out the reverse voltage generated after the switching through a unidirectional conduction method to prevent the reverse voltage from reversely charging the system power supply of the control circuit. In order to perform a single-way conduction setting, different unidirectional conduction circuits are specially set for different rotation directions of the electric mechanism, so that after the forward and reverse switching, the reverse voltage can still be filtered through different unidirectional conduction circuits.

[0049] The control signal judgment circuit is used to control the forward and reverse directions of the electric mechanism. After receiving the user's switch control signal, the control signal judgment circuit is used to generate a control circuit drive signal, and the control circuit drive signal is used to control one of the first drive circuit or the second drive circuit to be in a working state.

[0050] In order to prevent the system from being damaged due to excessively high or low voltage during the operation of the electric mechanism, according to a specific implementation method of an embodiment of the present disclosure, the control circuit also includes: a capacitor suppression circuit, the capacitor suppression circuit includes one or more energy storage capacitors, the energy storage capacitor is used to prevent energy shock to the power supply system when power is applied, the energy storage capacitor stores energy when an overvoltage condition occurs, and the energy storage capacitor quickly releases the stored electrical energy when an undervoltage condition occurs.

[0051] Through the above-mentioned embodiments, the safety of the electric mechanism can be further improved.

[0052] Example 3

[0053] See also Figure 3A control circuit of a dual-powered electric mechanism in an embodiment of the present disclosure includes: a dual-way switch control circuit, an anti-reverse charging circuit, a control signal judgment circuit, a capacitor suppression circuit, a Hall sensor and a delay circuit.

[0054] The dual-way switch control circuit is used to provide power supply to the electric mechanism, which is used to drive the motor structure to operate. The electric mechanism can be various types of structures containing motors, and the electric mechanism can be an electric motor that outputs power to the outside by rotating. As a way, the motor of the electric mechanism can rotate forward or reverse. To this end, a first drive circuit and a second drive circuit for providing power to the electric mechanism are provided in the dual-way switch circuit, the first drive circuit is used to drive the electric mechanism to operate forward, and the second drive circuit is used to drive the electric mechanism to operate reversely. By independently setting the first drive circuit and the second drive circuit, the electric mechanism can be quickly rotated forward or reversed by turning on any one of the first drive circuit and the second drive circuit.

[0055] During the forward and reverse switching process of the electric mechanism, due to the existence of inertia, the electric mechanism will continue to maintain the original rotation direction during the forward and reverse switching process, resulting in the generation of reverse voltage. For this reason, a special anti-reverse charging circuit is set. When the electric mechanism has an operation of switching the operating direction, the anti-recoil circuit filters out the reverse voltage generated after the switching through a unidirectional conduction method to prevent the reverse voltage from reversely charging the system power supply of the control circuit. In order to perform a single-way conduction setting, different unidirectional conduction circuits are specially set for different rotation directions of the electric mechanism, so that after the forward and reverse switching, the reverse voltage can still be filtered through different unidirectional conduction circuits.

[0056] The control signal judgment circuit is used to control the forward and reverse directions of the electric mechanism. After receiving the user's switch control signal, the control signal judgment circuit is used to generate a control circuit drive signal, and the control circuit drive signal is used to control one of the first drive circuit or the second drive circuit to be in a working state.

[0057] In order to prevent the system from being damaged due to excessively high or low voltage during the operation of the electric mechanism, according to a specific implementation method of an embodiment of the present disclosure, the control circuit also includes: a capacitor suppression circuit, the capacitor suppression circuit includes one or more energy storage capacitors, the energy storage capacitor is used to prevent energy shock to the power supply system when power is applied, the energy storage capacitor stores energy when an overvoltage condition occurs, and the energy storage capacitor quickly releases the stored electrical energy when an undervoltage condition occurs.

[0058] In order to further monitor the operating condition of the electric mechanism, according to a specific implementation of the embodiment of the present disclosure, the control circuit further includes:

[0059] The Hall sensor is used to monitor the rotation speed of the electric mechanism and generate a rotation speed signal. Specifically, the Hall sensor can monitor the direction of the electric mechanism, generate a forward signal when the electric mechanism runs forward, and generate a reverse signal when the electric mechanism runs reverse.

[0060] In order to ensure the safety of the electric mechanism during the forward and reverse switching process, according to a specific implementation method of the embodiment of the present disclosure, the control circuit also includes: a delay circuit, after receiving the user's switching signal for the first drive circuit and the second drive circuit, the delay circuit obtains the speed signal generated by the Hall sensor to generate a delay time corresponding to the speed signal; after receiving the user's switch control signal, the control signal judgment circuit generates a control circuit drive signal after the delay time.

[0061] In this way, a response delay signal can be generated according to the actual rotation speed of the electric mechanism, thereby ensuring the safety of the forward and reverse rotation switching.

[0062] Example 4

[0063] See also Figure 4 A control circuit of a dual-powered electric mechanism in an embodiment of the present disclosure includes: a dual-way switch control circuit, an anti-reverse charging circuit, a control signal judgment circuit, a capacitor suppression circuit, a Hall sensor, a delay circuit, and an indicator light module.

[0064] The dual-way switch control circuit is used to provide power supply to the electric mechanism, which is used to drive the motor structure to operate. The electric mechanism can be various types of structures containing motors, and the electric mechanism can be an electric motor that outputs power to the outside by rotating. As a way, the motor of the electric mechanism can rotate forward or reverse. To this end, a first drive circuit and a second drive circuit for providing power to the electric mechanism are provided in the dual-way switch circuit, the first drive circuit is used to drive the electric mechanism to operate forward, and the second drive circuit is used to drive the electric mechanism to operate reversely. By independently setting the first drive circuit and the second drive circuit, the electric mechanism can be quickly rotated forward or reversed by turning on any one of the first drive circuit and the second drive circuit.

[0065] During the forward and reverse switching process of the electric mechanism, due to the existence of inertia, the electric mechanism will continue to maintain the original rotation direction during the forward and reverse switching process, resulting in the generation of reverse voltage. For this reason, a special anti-reverse charging circuit is set. When the electric mechanism has an operation of switching the operating direction, the anti-recoil circuit filters out the reverse voltage generated after the switching through a unidirectional conduction method to prevent the reverse voltage from reversely charging the system power supply of the control circuit. In order to perform a single-way conduction setting, different unidirectional conduction circuits are specially set for different rotation directions of the electric mechanism, so that after the forward and reverse switching, the reverse voltage can still be filtered through different unidirectional conduction circuits.

[0066] The control signal judgment circuit is used to control the forward and reverse directions of the electric mechanism. After receiving the user's switch control signal, the control signal judgment circuit is used to generate a control circuit drive signal, and the control circuit drive signal is used to control one of the first drive circuit or the second drive circuit to be in a working state.

[0067] In order to prevent the system from being damaged due to excessively high or low voltage during the operation of the electric mechanism, according to a specific implementation method of an embodiment of the present disclosure, the control circuit also includes: a capacitor suppression circuit, the capacitor suppression circuit includes one or more energy storage capacitors, the energy storage capacitor is used to prevent energy shock to the power supply system when power is applied, the energy storage capacitor stores energy when an overvoltage condition occurs, and the energy storage capacitor quickly releases the stored electrical energy when an undervoltage condition occurs.

[0068] In order to further monitor the operating condition of the electric mechanism, according to a specific implementation of the embodiment of the present disclosure, the control circuit further includes:

[0069] The Hall sensor is used to monitor the rotation speed of the electric mechanism and generate a rotation speed signal. Specifically, the Hall sensor can monitor the direction of the electric mechanism, generate a forward signal when the electric mechanism runs forward, and generate a reverse signal when the electric mechanism runs reverse.

[0070] In order to ensure the safety of the electric mechanism during the forward and reverse switching process, according to a specific implementation method of the embodiment of the present disclosure, the control circuit also includes: a delay circuit, after receiving the user's switching signal for the first drive circuit and the second drive circuit, the delay circuit obtains the speed signal generated by the Hall sensor to generate a delay time corresponding to the speed signal; after receiving the user's switch control signal, the control signal judgment circuit generates a control circuit drive signal after the delay time.

[0071] In order to intuitively display the working status of the electric mechanism, according to a specific implementation of the embodiment of the present disclosure, the control circuit further includes: an indicator light module, which is used to indicate the current rotation speed and direction of the electric mechanism.

[0072] According to a specific implementation of an embodiment of the present disclosure, the indicator light module includes: a first indicator light, which generates a first indication color when the electric mechanism runs forward, and generates a second indication color when the electric mechanism runs reversely, and the first indication color is different from the second indication color.

[0073] According to a specific implementation of the embodiment of the present disclosure, the indicator light module further includes: a second indicator light, which generates flashing signals of different frequencies according to the rotation speed of the electric mechanism.

[0074] In order to monitor the current in the circuit and prevent overcurrent from damaging the system, according to a specific implementation method of the embodiment of the present disclosure, the dual-way switch control circuit also includes: a current monitoring module, which is used to cut off the power supply of the dual-way switch control circuit after the current value in the dual-way switch control circuit exceeds a preset current value.

[0075] According to a specific implementation of the embodiment of the present disclosure, the anti-reverse charging circuit further includes: an isolated PMOS switch tube, and the isolated PMOS switch tube is used to filter out the reverse voltage generated after switching in a unidirectional conduction manner.

[0076] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present disclosure should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A control circuit for a dual-powered electric mechanism, characterized in that: include: A dual-way switch control circuit, the dual-way switch control circuit is used to provide a first drive circuit and a second drive circuit to the electric mechanism, the first drive circuit is used to drive the electric mechanism to operate in a forward direction, and the second drive circuit is used to drive the electric mechanism to operate in a reverse direction; an anti-reverse charging circuit, wherein when the electric mechanism switches its operating direction, the anti-reverse charging circuit filters out the reverse voltage generated after the switching in a unidirectional manner to prevent the reverse voltage from reversely charging the system power supply of the control circuit; A control signal decision circuit, wherein the control signal decision circuit is used to generate a control circuit drive signal after receiving a switch control signal from a user, wherein the control circuit drive signal is used to control one of the first drive circuit or the second drive circuit to be in a working state; The control circuit further comprises: A Hall sensor, the Hall sensor is used to monitor the rotation speed of the electric mechanism and generate a rotation speed signal; The Hall sensor is also used for: Monitoring the direction of the electric mechanism, generating a forward signal when the electric mechanism is running in the forward direction, and generating a reverse signal when the electric mechanism is running in the reverse direction; The control circuit further comprises: A delay circuit, after receiving the user's switching signal for the first drive circuit and the second drive circuit, the delay circuit generates a delay time corresponding to the speed signal by acquiring the speed signal generated by the Hall sensor; after receiving the user's switch control signal, the control signal decision circuit generates a control circuit drive signal after the delay time.

2. The control circuit according to claim 1, characterized in that: The control circuit further comprises: A capacitor suppression circuit, wherein the capacitor suppression circuit includes one or more energy storage capacitors, wherein the energy storage capacitors are used to prevent energy shock to the power supply system when power is applied, and when an overvoltage condition occurs, the energy storage capacitors store energy, and when an undervoltage condition occurs, the energy storage capacitors quickly release the stored electrical energy.

3. The control circuit according to claim 1, characterized in that: The control circuit further comprises: The indicator light module is used to indicate the current rotation speed and direction of the electric mechanism.

4. The control circuit according to claim 3, characterized in that: The indicator light module comprises: The first indicator light generates a first indication color when the electric mechanism is running in a forward direction, and generates a second indication color when the electric mechanism is running in a reverse direction, and the first indication color is different from the second indication color.

5. The control circuit according to claim 4, characterized in that: The indicator light module also includes: The second indicator light generates flashing signals of different frequencies according to the rotation speed of the electric mechanism.

6. The control circuit according to claim 1, characterized in that: The dual-way switch control circuit also includes: A current monitoring module is used to cut off the power supply of the dual-way switch control circuit after the current value in the dual-way switch control circuit exceeds a preset current value.

7. The control circuit according to claim 1, characterized in that: The anti-reverse charging circuit also includes: An isolated PMOS switch tube is used to filter out the reverse voltage generated after switching in a unidirectional conduction manner.

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